Clearly explained 💯 Thank you sir 🙌

My favourite tutor, thank you so much.

Superd🎉. You guys are literally bettering my WASSCE grades, I sit for the practicals in 10hours time. A game changer for me

But how do we caculate the error in focal length? And how to deduce the focal length from the slope.

Plane mirror, 2 pieces of wood, glycerin, manilla paper with graph attached, biconvex lens, stand boss and clamp,dropper,half metre rule.kindly draft the expected experiment.

thank u so much

Thanks

Apt 🎉

Now I understand thank u

Is the 20cm the focal length